diff --git a/src/lib/ecore/efl_io_copier.c b/src/lib/ecore/efl_io_copier.c
index c92a8efca0..78d14f1fe2 100644
--- a/src/lib/ecore/efl_io_copier.c
+++ b/src/lib/ecore/efl_io_copier.c
@@ -781,9 +781,26 @@ _efl_io_copier_flush(Eo *o, Efl_Io_Copier_Data *pd, Eina_Bool may_block, Eina_Bo
    return pd->done;
 }
 
-EOLIAN static Eina_Bool
-_efl_io_copier_done_get(Eo *o EINA_UNUSED, Efl_Io_Copier_Data *pd)
+EOLIAN static size_t
+_efl_io_copier_pending_size_get(Eo *o EINA_UNUSED, Efl_Io_Copier_Data *pd)
 {
+   return pd->buf ? eina_binbuf_length_get(pd->buf) : 0;
+}
+
+EOLIAN static Eina_Bool
+_efl_io_copier_done_get(Eo *o, Efl_Io_Copier_Data *pd)
+{
+   DBG("%p done=%d pending=%zd source={%p %s, eos=%d, closed=%d}, destination={%p %s, closed=%d}",
+       o, pd->done,
+       pd->buf ? eina_binbuf_length_get(pd->buf) : 0,
+       pd->source,
+       pd->source ? efl_class_name_get(pd->source) : "",
+       pd->source ? efl_io_reader_eos_get(pd->source) : 1,
+       pd->source ? (efl_isa(pd->source, EFL_IO_CLOSER_MIXIN) ? efl_io_closer_closed_get(pd->source) : 0) : 1,
+       pd->destination,
+       pd->destination ? efl_class_name_get(pd->destination) : "",
+       pd->destination ? (efl_isa(pd->destination, EFL_IO_CLOSER_MIXIN) ? efl_io_closer_closed_get(pd->destination) : 0) : 1);
+
    return pd->done;
 }
 
diff --git a/src/lib/ecore/efl_io_copier.eo b/src/lib/ecore/efl_io_copier.eo
index 36ad624843..23198e8fc1 100644
--- a/src/lib/ecore/efl_io_copier.eo
+++ b/src/lib/ecore/efl_io_copier.eo
@@ -313,6 +313,23 @@ class Efl.Io.Copier (Efl.Loop_User, Efl.Io.Closer) {
            return: free(own(ptr(Eina.Binbuf)), eina_binbuf_free) @warn_unused; [[Binbuf]]
         }
 
+        @property pending_size {
+            [[Returns the size of the pending buffer.
+
+              The pending buffer is an intermediate buffer where data
+              is read from @.source before it's written to
+              @.destination, if any.
+
+              This is the equivalent of the size of returned by
+              @.binbuf_steal, however it doesn't steal or modify the
+              buffer at all, just query its internal size.
+            ]]
+            get { }
+            values {
+                size: size; [[The pending buffer size, in bytes.]]
+            }
+        }
+
         flush {
             [[Forces reading from source and writing to destination.